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首页> 外文期刊>Journal of Applied Polymer Science >Use of poly(ethylene-co-vinyl alcohol) as compatibilizer in LDPE/thermoplastic tapioca starch blends
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Use of poly(ethylene-co-vinyl alcohol) as compatibilizer in LDPE/thermoplastic tapioca starch blends

机译：聚乙烯（乙烯-共-乙烯醇）在LDPE /热塑性木薯淀粉混合物中用作增容剂

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Poly(ethylene-co-vinyl alcohol) (EVOH) was used as a compatibilizer to make blends of low-density polyethylene (LDPE) and plasticized starch (TS). The tensile properties and impact strength were measured and compared with those of neat LDPE. The morphology of the blend specimens, both fractured and unfractured, was observed by scanning electron microscopy. Comparison of the properties showed that the impact strength of the blend improves significantly by the addition of a compatibilizer even with a high TS loading of 40 and 50% (by weight). A high elongation at break almost matching that of neat polyethylene was also obtained. The blend morphology of the etched specimens revealed fine dispersion of the starch in the polyethylene matrix, while the fracture surface morphology clearly indicate that the failure of compatibilized blends occurs mainly by the ductile mode. (C) 2002 Wiley Periodicals, Inc. [References: 19]
机译：聚（乙烯-共-乙烯醇）（EVOH）用作增容剂，以制备低密度聚乙烯（LDPE）和增塑淀粉（TS）的混合物。测量拉伸性能和冲击强度，并将其与纯LDPE进行比较。通过扫描电子显微镜观察混合样品的断裂和未断裂的形态。性能比较表明，即使添加40和50％（按重量计）的高TS含量，通过添加增容剂，共混物的冲击强度也会显着提高。还获得了几乎与纯聚乙烯的断裂伸长率相匹配的高断裂伸长率。腐蚀样品的共混物形态显示淀粉在聚乙烯基体中的良好分散，而断裂表面形态清楚地表明，相容性共混物的破坏主要是由延性模式引起的。 （C）2002 Wiley Periodicals，Inc. [参考：19]

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